diff --git a/lib/pkp b/lib/pkp
index 5c8f7ced5cf..e4585829f6f 160000
--- a/lib/pkp
+++ b/lib/pkp
@@ -1 +1 @@
-Subproject commit 5c8f7ced5cf2e29e362301de63547c41492d6760
+Subproject commit e4585829f6f1574de2015282f7dba1a2dcfa1b0d